We’ve researched and ranked the best California HTML5 mobile app development agencies that build sophisticated and high-quality apps that help brands drive more loyal customers and sales. Compare listings by past work, reviews, cost and size to pick the best fit for you.
Organic rankings are determined by five factors: top services, reviews, portfolio, awards/press, and team expertise. Sponsored listings pay for a placement that appears above organic positions. Sponsorship does not affect star ratings or review content - read more on our methodology page.
Bring your vision to life
HDWEBSOFT is a leading software outsourcing company in Vietnam, known for its high-quality services, affordable pricing, and reliable team. With over 250 experienced engineers and a decade of expertise, HDWEBSOFT has helped businesses of all sizes from around the world to develop and launch successful...
Top Services:
- Web Development
- IoT
- Mobile App Development
- Software Development
- Big Data Analytics
- Show more
- Location
- Pasadena, California
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $35/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 12 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsHDWEBSOFT Services
Data sourced from the agency's DesignRush profilevTech Toku Logi TripScout PushPress Trustify SkyLab Speek Instantly ANX
HDWEBSOFT Reviews & Testimonials

Web Development Review from Jason Harvison
HDWEBSOFT did a fantastic work that aided the client in expanding their business, particularly in terms of growing website subscriptions. The project began on schedule and opened up a lot of opportunities for the business.

Web Development Review from David Zalik
Using a smooth user interface, HDWEBSOFT effectively updated our landing page, enticing visitors to sign up for the product's waitlist. The staff provided a customized strategy and was incredibly responsive, driven, and enthusiastic. They also used ClickUp for project administration.

Mobile App Development Review from Max Levchin
We've partnered with HDWEBSOFT who have created our app using .NET. The feedback from our customers we've received has been overwhelmingly good. We had heard positive things about the idea even before we released the app, so it's encouraging to see those comments continue once it has been out. HDWEBSOFT was set up from the start. The design team was outstanding; they completed the job on schedule and within our allocated budget. They followed a well-defined procedure that was in place.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsMarketing For Digital Natives
Grazitti Interactive, a global leader in digital innovation, offering AI-driven solutions to drive customer success. We specialize in Salesforce, marketing automation, analytics, and more, partnering with industry giants to deliver results-oriented solutions for clients...
Top Services:
- Graphic Design
- Video Production
- Web Design
- Web Development
- Digital Marketing
- Show more
- Location
- Mountain View, California
- Number of Employees
- 1000 & Up
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 11 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsGrazitti Interactive Services
Data sourced from the agency's DesignRush profileAwid Biogen MA, Inc Bulamu Healthcare International Calypso CBR Systems Inc (AMAG Pharmaceuticals) Connexity UK Limited Convert Digital Devex Didax Inc, Evoke Group LLC
Grazitti Interactive Reviews & Testimonials

Email Marketing Review from Rida Khan
This is the second company I've worked with Grazitti at and both experiences have been positive. Their team is able to turn around our requests very quickly and has provided good best practices from their work with other clients. I'd recommend them for the Marketing services.

Web Design Review from Patricia Lughezzani
Grazitti and Marketo Support have successfully partnered to roll out rich functionality and support Portal. Beyond core development skills to implement business functionally in SFDC Service Cloud and Customer Community, the Grazitti team has been a valued contributor to recommend technology such as Solr text search, workflow optimizations, and web creative design.

Digital Marketing Review from David Skyberg
Right from start the Grazitti team gave us the confidence that we do not need to have a plan B. Once things started rolling – they were able to accommodate a number of requirements that were made by the operating teams within the timeframe.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsAn Enterprise AI Development Company
Azilen Technologies is a prominent enterprise AI development company that takes pride in delivering exceptional AI, Data, and HRTech solutions to organizations seeking digital transformation...
Top Services:
- AI Development
- Software Development
- IT Services
- IoT
- Cloud Consulting
- Show more
- Location
- San Francisco, California
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $35/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 16 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsAzilen Technologies Services
Data sourced from the agency's DesignRush profileGattiHR MoCA Clearingbid Mindmaze Orbiwise Ukheshe Essentialaero
Software, Mobile App, Games Development Company.
The App Founders is a recognized leader in the mobile app development industry that excels in building mobile apps to upscale your business and bolster your customer retention rate. Well transform your idea into a market-ready application on schedule and within budget...
Top Services:
- Mobile App Development
- Software Development
- eCommerce Development
- Product Design
- CRM Consulting
- Show more
- Location
- Santa Clara, California
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $70/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 16 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsThe App Founders Services
Data sourced from the agency's DesignRush profileAirhme Bally Rideo Your Wish On Dragon Force Ninja Tamkeen Care Color Jumper Stacker Cracker
The App Founders Reviews & Testimonials
Walter White's Review Sourced from Google
Initially, The App Founders showcased a pro-found grasp of blockchain technology and its practical applications. They adeptly elucidated intricate concepts in a manner that resonated with my non-technical background, facilitating smoother communication and active involvement in developmental discussions.
Dustin Wheeler's Review Sourced from Google
it was such a pleasure working with App Founders and just how easy and professional they were. I quickly realized how the industry is full of thirsty, needy bots and scammers I’m trying to get your attention, but tons of unsolicited phone calls and texts. Dealing with these guys was a breath of fresh and definitely showed up in value above all the rest.
Munna Alam's Review Sourced from Google
Got to say, The App Founders really impressed me! They totally nailed the design for my mobile game. Can't wait to team up with them again to make and promote the game. Definitely recommending them to anyone looking for top-notch game development services!
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsTrusted Software Partner For Global Businesses
Enterprise Software Development and Maintenance Services Provider...
Top Services:
- Software Development
- Mobile App Development
- Web Development
- AI Development
- IT Services
- Show more
- Location
- California City, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $20/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 10 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsMLTech Soft Services
Data sourced from the agency's DesignRush profilePSA Marine Unilever LOF International Yen Viet JSC Lothamilk Smile For Success Dental Center DCSE Lab InApps Oxi House Pham Lam JSC
Driven Companies Towards Their Digital Transformation
We are a company specialized in software development for mobile platforms, portals and electronic commerce since 1991...
Top Services:
- eCommerce Development
- Web Development
- WordPress Website Design
- Software Development
- Mobile App Development
- Show more
- Location
- Concord, California
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $24/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 1 Project Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsMSP Mobility Corp. Services
Data sourced from the agency's DesignRush profileHoneywell Pfizer Black&Decker Novartis IBM Bimbo Kraft Foods Mars Capistrano Pepsico
We Build Next-Generation Applications for Small and Mid-Sized Companies.
Sunvera Software builds innovative and intelligent chatbot solution, mobile, and web applications to help small and mid-sized companies improve operational efficiency and customer satisfaction while reducing company costs...
Top Services:
- Web Design
- Software Development
- AI Development
- Mobile App Development
- IT Services
- Show more
- Location
- Orange County, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $75/hr
- Minimal Budget
- $10,000 - $25,000
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsSunvera Software Services
Data sourced from the agency's DesignRush profileSamsung Dacor Waffle House Simply Organic HUF Altura Packlist Pro HEYKUBE Reach Fitness Frontier Co-Op
Sunvera Software Reviews & Testimonials
Murali Krishna's Review Sourced from Google
I worked with Sunvera Software on the development of a fitness app for a business. Sunvera delivered the app on IOS and Android platforms. Their development teams were easy to deal with. The app had some complex workflows and Sunvera handled it easily. Weekly reviews kept the development pace on track and kept us informed on the progress.My 5-star review reflects my recommendation of Sunvera for anyone else seeking to develop a solution. However, a well thought-out review must also have identified room for improvement. My suggestion for improvement is their software-bug tracking and closure process to keep the customer better informed. There were times where this was lacking during our project. Team members compensated by stepping up and doing the needful.
David Garrett's Review Sourced from Google
Sunvera helped us develop an app for our product, HEYKUBE. They did an outstanding job, managing simultaneous iOS and Android versions, provisioning a backend server, and implementing core development for the app. The app incorporates graphics as well as a custom BTLE stack to communicate with our device. The team is great, and Ram provides steady leadership to make sure projects get done on time. I would highly recommend Sunvera to just get the job done for you.
chris georgieff's Review Sourced from Google
The team at Sunvera has been an invaluable partner for our company. Their approach to problem solving, their attention to detail, and ability to meet tight timelines have helped a young company like ours accomplish a great deal in a short amount of time. I highly recommend Sunvera for your next project. - Chris Georgieff, COO TollSense LLC
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsWe Bring The Tech. You Get The Wins.
Teamvoy is an AI engineering and transformation partner. We help companies make smarter technology decisions and turn them into production-ready software...
Top Services:
- Software Development
- AI Development
- Design Services
- Web Design
- UI/UX Design
- Show more
- Location
- Covina, California
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $10,000 - $25,000
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsTeamvoy Services
Data sourced from the agency's DesignRush profileNasdaq Panasonic Swisscom Afriland First Bank OSL Velory Neopenda Mitipi Garrison Flood Control Market Access Direct
Teamvoy Reviews & Testimonials
Саша Кравченко (sashko)'s Review Sourced from Google
it feels like you're working in an expensive boutique company with the most cutting-edge projects and leading industry experts
Альона Какора's Review Sourced from Google
Teamvoy is a professional company with strong expertise and a team of specialists who truly know their field. The atmosphere within the company is comfortable, open, and friendly, which makes working here enjoyable and productive.
Qui Cung's Review Sourced from Google
As a swiss company, we collaborated with teamvoy for the development of our website and application.We are very satisfied by the work done by their team and how the troubleshooted our issues.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsLet's Build Tomorrow Together.
We are a brand and software development agency specializing in building eCommerce, iOS, and feature-rich websites and apps that move your business forward...
Top Services:
- Product Design
- eCommerce Development
- Web Development
- UI/UX Design
- Web Design
- Show more
- Location
- Los Angeles, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $185/hr
- Minimal Budget
- $10,000 - $25,000
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsbadpixel Services
Data sourced from the agency's DesignRush profileDisney Netflix UnRealSports Peek Travel Klassy The Zeplin Speakeasy KRAK Terpli Inc. TrueCraft Blossom
badpixel Reviews & Testimonials
Jessica Dally's Review Sourced from Google
"We loved working with badpixel!We had already started talking with some potential locations and we needed to quickly establish our logo and branding. With the questionnaire that kicked off our discovery, we were able to capture what we were looking for and it was clearly understood as we went into our first review and really liked what we saw. After a few modifications, we had our logo and style guide allowing us to start working on our social presence while the badpixel team continued to work on our Square website setup.Once the site was ready, they walked us through everything and we were able to jump in and take control! Getting a website up just before the holiday season was huge, it lead to our first sales and profit!"
Charlie Wellborn's Review Sourced from Google
Badpixel did an excellent job developing our site (shophearton.com). They were responsive, communicated consistently with us and our marketing team, and met our aggressive deadline. Thanks Sheila & Chris!
Joemoney 42's Review Sourced from Google
Working with Chris has been so easy and we could not be happier with the branding for our business! Always very personable and responsive to our input. No need to look elsewhere for great branding! Thanks!
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsTop Mobile App and Web Development Company in Canada, USA and UK
We design highly polished iPhone, Android and Web Apps for startups and Enterprise clients...
Top Services:
- Mobile App Development
- Web Development
- UI/UX Design
- IoT
- Digital Marketing
- Show more
- Location
- Sunnyvale, California
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $15/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 3 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsMobMaxime Services
Data sourced from the agency's DesignRush profileBacsoft Ziptask Clementine
Related Services in California
Related Mobile App Development Specializations in California
Popular Services
Why companies trust DesignRush
Every agency is independently vetted before it can be listed or ranked
Some agencies pay for sponsored placement, clearly labeled and held to the same vetting standards.











